Spool with removable heads



Jan. 9, 1951 H. 1.. BURBIDGE SPOOL WITH REMOVABLE HEADS Filed May 5, 1947 FIG.|.

INVENTOR.

Patented Jan. 9, 1951 UNITED SPOOL WITH REMOVABLE HEADS Harry: Lovell Burbidge, Coventry, lEngiand Application May 5, 1947, Serial No. 745,942 In Great Britain February 27, 1945 Section 1, Public Law 690, August 8, 1946 Patent expires February 27, 1965 2 Claims. 1

This invention relates to reels, upon which yarns or other threads'can be wound, for; use with weaving or other textile'ma'chinery, the reels buing; of the kind having a hub' on which there are separately attached end flanges formed of fibrereinforced moulded synthetic resin. The object of the invention is to provide an improved reel of this kind.

According. to the invention the. hub of the reel is a metal tube the ends of which are externally screw-threaded, and each end flange is formed during the moulding process with an annular depression having a coacting internal screw-thread in which the respective hub end is received, the screw-threads on the hub ends being masked by the end flanges.

It is preferred that the rim of each flange should be axially proud of the rest of the external face of the flange. Thus, when two reels, according to the invention, are coaxially mounted adjacent one another, it is only the rims of the flanges which can contact one another.

The metal of the hub is preferably a lightalloy, and the ends of the hub may be locked in the flanges in any convenient manner, as by abutting the centre portions of the flanges, for axial location, and by the use of set screws to prevent the hub from un-screwing from either flange. The centre portions of the flanges preferably provide bosses extending into the ends of the hub, the bosses having in them aligned holes (to receive a supporting spindle) which are outwardly flared towards one another, to facilitate mounting the reel upon a supporting spindle,

According to a further feature of the invention, the hub is provided with a key-hole slot through which a knotted end of a length of warp or other thread can be passed, and caught thereby, when such length is to be wound on the reel.

In the accompanying drawings:

Figure 1 is a fragmentary part-sectional elevation of one form of reel according to the invention, the section being on the line l-l of Figure 3;

Figure 2 is an enlarged sectional detail view of the screw connection;

Figure 3 is an end elevation of the reel with part of the adjacent flange broken away; and

Figure 4 is a fragmentary cross-section through the key-hole slot in the hub.

Referring to the drawings, there are two end flanges I l which are formed of an appropriate fibre-reinforced plastic and are moulded to shape, with recesses l3 to receive the ends of the hub l2 as hereinafter described. The bore Id of the hub is aligned with central holes I5 moulded in the end flanges.

Each end flange comprises an annular disc portion H, a centre portion It to which the adjacent end of the hub is secured, a rim 1% which is usually peripherally grooved, for example, as shown at and a number of radially-extending webs 2! (six in the example shown) which abut the outer face of the disc portion ll and extend between the centre portion I 8 and the rim IS. The latter, it will be observed from Figure 1, is proud, as shown at 22, on its axially-outer edge, of the rest of the flange so that when two such reels are coaxially mounted to be as close to one another as possible only their rim projections 22 will contact one another.

Each recess it is provided with a screw-thread round the periphery into which extends the hub, the latter having a screw-thread 24 at its ends to screw into the associated threaded recesses.

A pair of grub screws 25 is shown as passed through the centre portion 18 and engaging the end of the hub E2 to locate it against unscrewing. It is axially located by being screwed against the bottoms of the recesses.

In addition, the centre portion I8 is formed with a boss 26 extending inwardly of the adjacent end of the hub H2. The hole l5, which extends through the boss, is outwardly flared at its axially-inner end, as shown at 21, to assist in guiding a spindle when inserted through one end flange to pass through the hole I5 in the other end flange. It is preferred that the hub I2, if of an aluminum alloy, should have its surface treated so that it will not react chemically with a yarn.

Figures 1 and 4 show half a key-hole slot in the hub having a relatively-large central opening 29 connected at each end with a relatively-narrow slot portion 35! which is flared at 3! so as to provide a smooth edge to a length of thread when knotted at its end and connected with the reel, to be wound thereon, by having its knot passed through the enlarged portion 29 and then slipped down to be caught by the narrow portion 38.

The reel can be inexpensively constructed once the necessary dies for the plastic have been formed. The radial ribs 2! enable it to be formed so that it will be resistant to bending out of its plane, i. e., to warping. screwing the ends of the hub 52 into the appropriate threaded recesses in the centre ortions of the end flanges makes a very firm and. satisfactory joint which also prevents any tilting of an end flange with respect to the hub.

If desired, instead of the boss 26 in an end flange being formed integrally with the centre portion, as shown, use may be made of a brass or other insert to be secured in the end flange during the moulding operation.

What I claim as my invention and desire to secure by Letters Patent of the United States is:

1. A reel, for textile machinery, comprising a tubular metal hub having external screw threads formed at its ends, and two end flanges of a fibre-reinforced plastic, each of said flanges having a rim portion extending axially beyond one face thereof which is to be the outer face, said end flanges having, on the faces which are to be their inner faces, central depressions which are peripherally bounded by screw threads which respectively receive and completely mask the screw threads at the ends of the hub when screwed fully thereinto, said flanges also having on their said inner faces central bosses extending into the adjacent ends of the hub and provided centrally with coaxial holes which are outwardly flared at their ends within the hub.

' 2. A reel, for textile machinery, comprising a tubular metal hub having external screw threads formed at its ends, and two end flanges of a fibre-reinforced plastic, each of said flanges comprising an annular disc portion, and, extending axially from one face thereof which is to be the outer face, a central portion and a rim portion joined to one another and to said annular disc portion by radially extending webs, said rim portion extending axially beyond said central portion and said webs, said end flanges having, in said centre portions, on the faces which are to be their inner faces, central depressions which are peripherally bounded by screw threads which respectively receive and completely mask the screw threads at the ends of the hub when screwed fully thereinto, said flanges also having on their said inner faces central bosses extending into the adjacent ends of the hub and provided centrally with coaxial holes which are outwardly flared at their ends within the hub.

HARRY LOVELL BURBIDGE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,451,131 Weber Apr. 10, 1923 1,807,582 Brown June 2, 1931 2,000,372 Beck May 7, 1935 2,140,497 Deters Dec. 20, 1938 2,445,932 Bergstrom July 27, 1948 FOREIGN PATENTS Number Country Date 691,266 France Mar. 6, 1930 

